if statement: how to code "if a is a multiple of b"

Question

I would like to write "if i is a multiple of 11" then

System.out.print("|")

But I'm not sure how to do this?

I'm trying to incorporate sides on the edge of my 'tank of fish'.

The situation might be silly but I think the question is valid.

--------------------------------------------------
<#>< <#>< <#>< <#>< <#>< <#>< <#>< <#>< <#>< <#><
<#>< <#>< <#>< <#>< <#>< <#>< <#>< <#>< <#>< <#><
<#>< <#>< <#>< <#>< <#>< <#>< <#>< <#>< <#>< <#><
<#>< <#>< <#>< <#>< <#>< <#>< <#>< <#>< <#>< <#><
<#>< <#>< <#><
----------------------------------------------------

public class partCC
{

    public partCC()
    { 
    System.out.println("--------------------------------------------------");
    {
    for (int i=0; i<43; i++)



     {if (i > 0 && i%10 == 0)  
        System.out.println(); 

        System.out.print(" <#><");

    }
    {if 
       (i

      System.out.println();
      System.out.print("----------------------------------------------------");
    }


    } 
}

score 3 · Answer 1 · edited May 23 '17 at 11:56

3

It think you should look at How Does Modulus Divison Work just to understand why this answer is right.

the answer in your case is if ((i % 11) == 0) { System.out.print("|") }

edited May 23 '17 at 11:56

Community

1
1

answered Jul 10 '12 at 06:43

eyossi

4,230
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score 2 · Answer 2 · edited Jul 10 '12 at 06:49

2

if ((a % b) == 0) System.out.print("|");

The modulus operator % returns the remainder after dividing a by b which will always be 0 if a is divisible by b.

edited Jul 10 '12 at 06:49

eyossi

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answered Jul 10 '12 at 06:35

PoeHaH

1,936
3
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52

score 1 · Answer 3 · answered Jul 10 '12 at 06:53

1

You need to check for the Zero in condition

if(i != 0 && (i % 11) == 0) System.out.print("|");

because initializing i with zero would produce | at first loop cycle too as 0 % 11 would produce 0

answered Jul 10 '12 at 06:53

Junaid

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if statement: how to code "if a is a multiple of b"

3 Answers3